J/MNRAS/396/1895ivo://CDS.VizieR/J/MNRAS/396/1895doi:10.26093/cds/vizier.73961895CDSCenarro A.J.Cardiel N.Vazdekis A.Gorgas J.2024-07-08T20:15:58Z2011-05-13T14:39:59ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frglobular-star-clustersspectroscopyUsing the near-infrared spectral stellar library of Cenarro et al. (J/MNRAS/326/959), the behaviour of the MgI line at 8807{AA} and nearby TiO bands is analyzed in terms of the effective temperature, surface gravity and metallicity of the library stars. New spectroscopic indices for both spectral features - namely MgI and sTiO - are defined, and their sensitivities to different signal-to-noise ratios, spectral resolutions, flux calibrations and sky emission-line residuals are characterized. The two new indices exhibit interesting properties. In particular, MgI is a good indicator of the Mg abundance, whereas sTiO is a powerful dwarf-to-giant discriminator for cold spectral types. Empirical fitting polynomials that reproduce the strength of the new indices as a function of the stellar atmospheric parameters are computed, and a fortran routine with the fitting function predictions is made available. A thorough study of several error sources, non-solar [Mg/Fe] ratios and their influence on the fitting function residuals is also presented. From this analysis, an [Mg/Fe] underabundance of ~-0.04 is derived for the Galactic open cluster M67.2009MNRAS.396.1895Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/396/1895CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/326/959 : Near-IR Ca triplet empirical calibration (Cenarro+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/396/1895https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/396/1895http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/396/1895https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/396/1895https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/396/1895http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/396/1895GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/396/1895/table10 (*MgI and sTiO index measurements)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/396/1895/table10?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/396/1895/table10?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/396/1895/table10?GETtext/xml+votable180.050000true184.81958325.4363890.0055555555555555565/7120 6/137 254 322 337 341-342 348-349 351 373 433 587 684 737 798 998 1024 1058 1286 1297 1341 1360 1556 1642 1808 1938 2282 2317 2340 2420 2440 2460 2472 2476 2737 2784 2921 2940 2997 3020 3026 3038 3066 3077 3102 3183 3239 3256 3274 3276 3600 3608 3633 3639 3662 3712 3719 3794 3915 4078 4298 4376 4419 4438 4559 4574 4690 4698 4772 4820 4846 4854 4895 5009 5154 5226 5304 5377 5522 5534 5587 5621 5670 5836 5853 5929 5982 6039 6051 6058 6066 6103 6153 6160 6166 6196 6203 6226 6298 6340 6381 6472 6489 6510 6519 6714 6727 6730 6766 6825 6852 6926 7064 7101 7238 7264 7303 7456 7610 7763 7767 8210 8281 8314 8333 8348 8470 8476 8577 8671 8689 8756 8767 8843 8845 8926 8967 8985 9065 9083 9125 9127 9222 9373 9403 9436 9476 9483 9502 9537 9648 9664 9666 9717 9753 9792 9801 9813 9835 9843 9857 9874 10055 10101 10336-10337 10359 10367 10375 10407 10476 10504 10568 10696 10783 10811-10812 10835 10997 11120 11128 11197 11204 11394 11403 11412 11473 11620 11671 11851 11885 11929 12030 12056 12111 12130 12179 12264 12295 12337 12340 12424 12451 12621 12704 12735 12784 12890 12934 12943-12944 12956 12972 13087 13292 13333 13440 13474 13478 13688 13734 13778 13801 13803 13882 13928 14005 14013 14109 14146 14175 14180 14220 14239 14264 14278 14280 14298 14303 14319 14359 14365 14385 14419 14431 14534 14545 14616 14621 14630 14649 14691 14712 14850 14878 14901 14906-14907 14931 14968 15012 15045 15096 15174 15185 15237 15273 15311 15362 15392 15396 15511 15597 15620 15624-15625 15628 15659 15664 15672 15715 15719 15747 15768 15865 16023 16035 16069 16094 16105 16115 16678 16883 16935 17000 17099 17124 17136 17245 17266 17425 17695 17744 17812 17919 17941 17955 18139 18166 18204 18315 18450 18553 18561 18591 18651 18688 18710 18726 18893 18907 18998 19217 19237 19286 19312 19323 19585 19802 19825 19912 20057 20071 20254 20276 20278 20308 20402 20828 20886 20981 21060 21089 21269 21423 21467 21612 21738 21885 21901 21941 22015 22180 22205 22214 22269 22335 22398 22448 22483 22594 22708 22813 23096 23190 23230 23332 23339 23369 23405 23416 23431 23454 23466 23493 23514 23518 23526 23529 23533 23538 23545 23547-23548 23611 23695 23822 23880 23922 23979 23983 24087 24151 24218 24228 24357-24358 24486 24920 24924-24925 25051 25246 25444 25595 25607 25869 25910 25963 25973 26025 26180 26289 26302 26327 26344 26347 26366 26457 26552 26575 26758 26963 26975 27198 27457 27735 27763 27900 27975 28019 28092-28093 28137-28138 28173 28336 28350 28437 28484 28489 28494 28605 28664 28670 28959 29024 29077 29136 29533 29548 29680 29712 29729 29731 29800 29867 30064 30225 30293 30307 30344 30398 30419 30439 30518 30529 30541 30567 30576-30577 30579 30640 30660 30665 30694 30709 30769 30825 30848 30915 30939 30958 30965 31019 31048 31087 31094 31172 31390 31396 31402 31416-31417 31425 31428 31475 31478 31488 31503 31576 31585 31592 31619 31686 31709 31756-31757 31768 31781 31842 31929 31933 31987 32023 32087 32096 32102 32140 32182 32185 32243 32271 32357 32556 32558 32562 32575 32619 32621 32645 32659 32661 32725 32731 32757 36221 36379 36655 36693 36697 39893 39907 39916 39923 40567 40635 40716 40795 40885 42836 44191 44281 44284 44542 44653 44721-44722 44771 44816 44859-44860 44926 48223 48394 48652 48731 48736 48886 48964 48992 49063 49106 49114https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/396/1895?format=asciiOpticaldefaultJ/MNRAS/396/1895/table1Definition of previous and new indices for the near-IR MgI line ({lambda} 8807{AA}) and TiO bands ({lambda}{lambda} 8432, 8442, 8452{AA}; {lambda}{lambda} 8860, 8868{AA})recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIndexIndex namemeta.id;meta.maincharRefReference code (1)meta.notecharTypeType (2)meta.code;phys.atmol.transitioncharlambdaCentral bandpass0.1nminstr.bandpasscharlambdaCont1Continuum bandpass0.1nmmeta.notecharlambdaCont2Continuum bandpass0.1nmmeta.notecharlambdaCont3Continuum bandpass0.1nmmeta.notecharlambdaCont4Continuum bandpass0.1nmmeta.notecharlambdaCont5Continuum bandpass0.1nmmeta.notecharJ/MNRAS/396/1895/table10*MgI and sTiO index measurementsNameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintSpTypeMK spectral typesrc.spTypecharMgIMgI index measurement0.1nmspect.indexfloate_MgIrms uncertainty on MgI (2)0.1nmstat.errorfloatdMgI? Fitting function residual for MgI0.1nmstat.fit.residualfloatnullablesTiOsTiO index measurement0.1nmspect.indexfloate_sTiOrms uncertainty on sTiO (2)0.1nmstat.errorfloatdsTiO? Fitting function residual for IsTiO0.1nmstat.fit.residualfloatnullable[Mg/Fe]? [Mg/Fe] abundances (when available)phys.abundfloatnullabler_[Mg/Fe]? Reference for [Mg/Fe] (3)meta.ref;pos.frameintnullableSimbadNameSimbad column added by the CDSmeta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainr[*S] Remark on the position (1)meta.notechar